Improvement in shoemakers  pinchers



T. B. SHELLY.

SHOEMAKERSZPINCERS.

Patented Nov. 7, 1876.

THE GRAPHIC ODJLY VNI'ISED STATES PATENT OFFICE.

THOMAS E. SHELLY, OFGHIOAGO, ILLINOIS.v

IMPROVEMENT IN SHOEMAKERS PINCHERS.

Specification forming part of Letters Patent No. 184,180, dated November7, 1876 application filed July 24, 1875.

To all whom it may concern:

Be it known that I, THOMAS B. SHELLY, of Chicago, in the county of (lookand State of Illinois, have invented a new and useful Improvement inPinchers; and I do hereby declare the following to be a full, clear, andexact description thereof, which will enable others skilled in the artto which it appertains to make and use the same, reference being had tothe accompanying drawing, forming a part of this specification, inwhich- Figure l is a perspective view of the pinchers proper, with thepart forming the movable fulcrum removed. Fig. 2 is a perspective Viewof the movable fulcrum; and Fig. 3 is a side elevation of a portion ofthe pinchers proper, with the movable fulcrum attached, a portion ofwhich is broken away, showing the manner of securing the same to thefixed fulcrum.

Similar letters of reference indicate like parts in the several figuresof the drawing.

My invention relates more particularly to that class of pinchersemployed in the manufactureofboots and. shoes; and its object is toimprove the pinchers for which Letters Patent No. 143,594 were grantedto me October 14,1873. To that end it consists in the arrangement ofparts, more fully understood by the following description and claims.

In the drawing, A represents the upper jaw, and A the lower jaw, whichare formed as a part of their respective handles B B. O is the fixedfulcrum, which is made as a part of the upper jaw A, as shown in Figs. 1and 3. 0 represents the fixed fulcrum, which is made as a part of theupper jaw, and provided at its lower end with a groove on each side,right and left, running across it at right angles, or nearly so. Drepresents a removable fulcrum, to be taken off and puton at will, ofsuch construction as to be put onto the fixed fulcrum through thegrooves at its lower end,

and fastened by means of the button a, pivoted to the removable fulcrumD, and so arranged as to bear against the rear surface of the fixedfulcrum O, as shown in Fig. 3.

l1, In constructing my improved pinchers I first cast the upper handleand lower jaw with a solid circular disk, d,located at its junction withthe lower handle, which unites said upper handle and lower jaw, makingthem one solid piece, and forms the fulcrum on which the upper handleturns. This part is then placed into the molds of the lower handle, insuch position as to bring the disk in place where the handles cross, andleave an opening for that part of the lower handle which crosses theother to form or cast over and around the disk to form the joint. Whenthe parts are thus cast together they form a perfect and compact joint,which turns on the disk without the aid of a rivet to hold themtogether, and the lower handle and upper jaw, together with the fixedfulcrum, are formed in one solid piece of metal instead of two, as in myformer patent.

The fulcrum, being a part of the upper jaw, gives leverage to the gripeof the jaws, and enables the operator to hold the leather with a firmergrasp, and draw it down to the last by one and the same operationnamely,bearing down on the upper handle. The lower handle is used mainly forthe purpose of opening the jaws, it not being necessary, as withordinary pinchers, to gripe the leather mainly by the gripe of the handin drawing the upper and lower handles together.

The pinchers, as constructed without the movable fulcrum D, are used forlasting boots or shoes at all required points except the shank, whichusually requires a ditferent tool for lasting.

For the purpose of lasting the shank with my pinchers, I have devisedthe movable fulcrum D, (shown in Fig. 2 of the drawing,) which may beput on or taken off at will. It is attached to the fixed fulcrum, andheld in place by means of the key or button a, but may be attached inany other convenient mode. When it is attached the pinchers have thesame leverage of gripe as without it, and are adapted'to slide over thehollow of the last, and draw the leather down to the last at this point,as is required in lasting the shank.

I make the jaws of the pinchers either with or without the slot 1),Fig. 1. The object of this slot is to afford a better hold on theleather.

What I claim is-- 1. Pinchers having a disk or pulley joint,substantially of the construction described.

2. Shoemakers pinehers having the fixed with shoemakers pinchers, forshank-lasting, fulcrum made as a part of the upper jaw, andsubstantially as described. provided with grooves at its lower end, toadmit of the attachment of the removable ful- THOMAS B. SHELLY. orum Dfor shank-lasting, substantially as de- Witnesses scribed. JOHN H.WHIPPLE,

3. The removable fulcrum D, in combination CHARLES K. OFFIELD.

